CSPAN3 In July 4, 2024
Host into its first human but them. Viruses can only live in cellular creatures, can only replicate in animals, plants or some other kind of cellular creature. When a new virus appears in humans, it had to come from some other living creature, almost certainly an animal, probably a mammal or bird. When the virus passes from the nonhuman animal into its first human, that is the moment of spillover. Host hardly common . Are they common . Guest more common than we recognize. We have been recognizing more and more as they occur. Whenever there is a new virus it has to come from somewhere and there...